* Created desktop reactions menu

Moved raise hand functionality to reactions menu

* Added reactions to chat

* Added animations

* Added reactions to the web mobile version

Redesigned the overflow menu. Added the reactions menu and reactions animations

* Make toolbar visible on animation start

* Bug fix

* Cleanup

* Fixed overflow menu desktop

* Revert mobile menu changes

* Removed unused CSS

* Fixed iOS safari issue

* Fixed overflow issue on mobile

* Added keyboard shortcuts for reactions

* Disabled double tap zoom on reaction buttons

* Refactored actions

* Updated option symbol for keyboard shortcuts

* Actions refactor

* Refactor

* Fixed linting errors

* Updated BottomSheet

* Added reactions on native

* Code cleanup

* Code review refactor

* Color fix

* Hide reactions on one participant

* Removed console log

* Lang fix

* Update schortcuts

As an intermediate step on the path to merging jitsi-meet and
jitsi-meet-react, import the whole source code of jitsi-meet-react as it
stands at
2f23d98424
i.e. the lastest master at the time of this import. No modifications are
applied to the imported source code in order to preserve a complete
snapshot of it in the repository of jitsi-meet and, thus, facilitate
comparison later on. Consequently, the source code of jitsi-meet and/or
jitsi-meet-react may not work. For example, jitsi-meet's jshint may be
unable to parse jitsi-meet-react's source code.